代码:
#include <stdio.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <net/if.h>
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int main(int argc, char *argv[])
{
int i;
/* get mac */
struct ifreq ifreq;
int sock;
char mac[32];
if((sock=socket(AF_INET,SOCK_STREAM,0))<0)
{
perror("error");
return 2;
}
strcpy(ifreq.ifr_name,argv[2]);
if(ioctl(sock,SIOCGIFHWADDR,&ifreq)<0)
{
perror("error:");
return 3;
}
/* printf("%02x%02x%02x%02x%02x%02x ",
(unsigned char)ifreq.ifr_hwaddr.sa_data[0],
(unsigned char)ifreq.ifr_hwaddr.sa_data[1],
(unsigned char)ifreq.ifr_hwaddr.sa_data[2],
(unsigned char)ifreq.ifr_hwaddr.sa_data[3],
(unsigned char)ifreq.ifr_hwaddr.sa_data[4],
(unsigned char)ifreq.ifr_hwaddr.sa_data[5]);
*/
for (i=0; i<6; i++)
sprintf(mac+2*i, "%02x", (unsigned char)ifreq.ifr_hwaddr.sa_data[i]);
printf("MAC: %s ", mac);
return 0;
}
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